diff --git a/core/drupalci.yml b/core/drupalci.yml
index 374a8baa6e..ed02d43c63 100644
--- a/core/drupalci.yml
+++ b/core/drupalci.yml
@@ -15,10 +15,6 @@ build:
         sniff-all-files: false
         halt-on-fail: false
     testing:
-      # Update PHPUnit & friends.
-      container_command:
-        commands:
-          - "sudo -u www-data /usr/local/bin/composer update composer/composer --with-dependencies --no-progress"
       # run_tests task is executed several times in order of performance speeds.
       # halt-on-fail can be set on the run_tests tasks in order to fail fast.
       # suppress-deprecations is false in order to be alerted to usages of